/*
 * This library is part of OpenCms -
 * the Open Source Content Management System
 *
 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * For further information about Alkacon Software, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project website: http://www.opencms.org
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.opencms.ade.containerpage.client.ui;

import org.opencms.ade.containerpage.client.CmsContainerpageController;
import org.opencms.ade.containerpage.client.CmsContainerpageHandler;
import org.opencms.ade.containerpage.client.ui.css.I_CmsLayoutBundle;
import org.opencms.gwt.client.ui.I_CmsButton;
import org.opencms.gwt.client.ui.contextmenu.CmsShowPage;
import org.opencms.util.CmsStringUtil;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import com.google.common.base.Joiner;
import com.google.gwt.event.dom.client.ClickEvent;

/**
 * The edit button holding all edit related methods.<p>
 *
 * @since 8.0.0
 */
public class CmsToolbarEditButton extends A_CmsToolbarOptionButton {

    /** List of function types. */
    private static final List<String> functionTypes = Arrays.asList("function", "function_config");

    /**
     * Constructor.<p>
     *
     * @param handler the container-page handler
     */
    public CmsToolbarEditButton(CmsContainerpageHandler handler) {

        super(I_CmsButton.ButtonData.EDIT, handler);
    }

    /**
     * @see org.opencms.ade.containerpage.client.ui.A_CmsToolbarOptionButton#createOptionForElement(org.opencms.ade.containerpage.client.ui.CmsContainerPageElementPanel)
     */
    @Override
    public CmsElementOptionButton createOptionForElement(CmsContainerPageElementPanel element) {

        CmsElementOptionButton button = super.createOptionForElement(element);
        button.setImageClass(I_CmsButton.ButtonData.SELECTION.getIconClass());
        if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(element.getNoEditReason())) {

            List<String> cssClasses = new ArrayList<>();
            cssClasses.add(I_CmsButton.ButtonData.SELECTION.getIconClass());
            if (functionTypes.contains(element.getResourceType())) {
                cssClasses.add(I_CmsLayoutBundle.INSTANCE.containerpageCss().functionElement());
                cssClasses.add(I_CmsLayoutBundle.INSTANCE.containerpageCss().lockedElement());
                button.setTitle(element.getNoEditReason());
            } else if (element.hasWritePermission()
                && !((element instanceof CmsGroupContainerElementPanel)
                    && ((CmsGroupContainerElementPanel)element).isInheritContainer())) {
                cssClasses.add(I_CmsLayoutBundle.INSTANCE.containerpageCss().lockedElement());
                button.setTitle(element.getNoEditReason());
            } else {
                button.disable(element.getNoEditReason());
            }
            button.setImageClass(Joiner.on(" ").join(cssClasses));
        }
        return button;
    }

    /**
     * @see org.opencms.ade.containerpage.client.ui.A_CmsToolbarOptionButton#onElementClick(com.google.gwt.event.dom.client.ClickEvent, org.opencms.ade.containerpage.client.ui.CmsContainerPageElementPanel)
     */
    @Override
    public void onElementClick(ClickEvent event, CmsContainerPageElementPanel element) {

        if (CmsStringUtil.isEmptyOrWhitespaceOnly(element.getNoEditReason())) {
            if (!CmsContainerpageController.get().getData().isModelGroup() && element.isModelGroup()) {
                new CmsShowPage().execute(element.getModelGroupId(), null, null);
            } else {
                openEditor(element);
            }
        } else {
            openLockReport(element);
        }
        event.stopPropagation();
        event.preventDefault();

    }

    /**
     * Opens the element editor.<p>
     *
     * @param element the element
     */
    private void openEditor(CmsContainerPageElementPanel element) {

        getHandler().openEditorForElement(element, false, element.isNew());
    }

    /**
     * Opens the lock report for locked elements.<p>
     *
     * @param element the element
     */
    private void openLockReport(CmsContainerPageElementPanel element) {

        getHandler().openLockReportForElement(element);
    }
}
